If using an original ISO, tools like nLite or the WinXP-IE Optional Patch Integrator are used to "slipstream" or integrate modified drivers for SATA AHCI and ACPI into the installation media. 2. BIOS/UEFI Configuration
I tried the "CSM" (Compatibility Support Module) route, but my 2021 firmware had already started phasing it out. Attempt 2: I followed a lead from a Win-Raid forum thread install windows xp on uefi system 2021